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//===-- Template to diff single-input-single-output functions ---*- C++ -*-===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_LIBC_FUZZING_MATH_SINGLE_INPUT_SINGLE_OUTPUT_DIFF_H
#define LLVM_LIBC_FUZZING_MATH_SINGLE_INPUT_SINGLE_OUTPUT_DIFF_H
#include "fuzzing/math/Compare.h"
#include <stddef.h>
#include <stdint.h>
template <typename T> using SingleInputSingleOutputFunc = T (*)(T);
template <typename T>
void SingleInputSingleOutputDiff(SingleInputSingleOutputFunc<T> func1,
SingleInputSingleOutputFunc<T> func2,
const uint8_t *data, size_t size) {
if (size < sizeof(T))
return;
T x = *reinterpret_cast<const T *>(data);
T result1 = func1(x);
T result2 = func2(x);
if (!ValuesEqual(result1, result2))
__builtin_trap();
}
template <typename T1, typename T2>
using SingleInputSingleOutputWithSideEffectFunc = T1 (*)(T1, T2 *);
template <typename T1, typename T2>
void SingleInputSingleOutputWithSideEffectDiff(
SingleInputSingleOutputWithSideEffectFunc<T1, T2> func1,
SingleInputSingleOutputWithSideEffectFunc<T1, T2> func2,
const uint8_t *data, size_t size) {
if (size < sizeof(T1))
return;
T1 x = *reinterpret_cast<const T1 *>(data);
T2 sideEffect1, sideEffect2;
T1 result1 = func1(x, &sideEffect1);
T1 result2 = func2(x, &sideEffect2);
if (!ValuesEqual(result1, result2))
__builtin_trap();
if (!ValuesEqual(sideEffect1, sideEffect2))
__builtin_trap();
}
#endif // LLVM_LIBC_FUZZING_MATH_SINGLE_INPUT_SINGLE_OUTPUT_DIFF_H
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